c# - 如何在 WinForms 集合编辑器中指定成员名称的来源？

Question

是否可以在下面看到的集合编辑器中更改用于获取成员名称的属性？

[TypeConverter(typeof(ExpandableObjectConverter))]
[Serializable] // Class is also bin serialised
public class SocialPolicy
{
    /// <summary>
    /// The ID of the social policy
    /// </summary>
    [Description("The ID of the social policy")]
    [DisplayName("ID"), Browsable(true), Category("General")]
    [XmlElement("ID")]
    public string ID { get; set; } = "POLICY_NULL";

    /// <summary>
    /// The name of the social policy in a display ready format
    /// </summary>
    [Browsable(false)]
    [XmlIgnore]
    public string Name { get; set; } = "Null";

    /// <summary>
    /// The Tree ID of the social policy
    /// </summary>
    [Description("The Tree ID of the social policy")]
    [DisplayName("TreeID"), Browsable(true), Category("General")]
    [XmlElement("TreeID")]
    public string TreeID { get; set; } = "POLICYTREE_NULL";

    ...
}

目前它从默认值中获取其名称，即在我的编辑器中始终为“Null”的 Name 属性，但我宁愿它从 ID 中获取它。我一直在寻找任何可以用来改变它的装饰品，但一直找不到。

Answer 1

保存 SocialPolicy 列表的类可以通过使用 CollectionEditor 的自定义版本来提供它并覆盖 GetDisplayText 函数:

public class Test {

  [Editor(typeof(TestEditor), typeof(UITypeEditor))]
  public List<SocialPolicy> Policies { get; }

  public Test() {
    this.Policies = new List<SocialPolicy>();
    this.Policies.Add(new SocialPolicy());
  }

  public class TestEditor : CollectionEditor {
    public TestEditor(Type type)
        : base(type) {
    }

    protected override string GetDisplayText(object value) {
      if (value is SocialPolicy) {
        return ((SocialPolicy)value).ID;
      } else {
        return value.ToString();
      }
    }
  }
}